Page marking device



FIG. 1 is a bottom plan view thereof, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is left side view thereof;

FIG. 4 is a back end view thereof;

FIG. 5 is a front end view thereof; and,

FIG. 6 is a perspective view thereof. 

The ornamental design for a page marking device, as shown and described. 